Parts of a plant are listed.
- mesophyll cells
- root cortex cells
- root hair cells
- xylem vessels
What is the pathway taken by water in the plant?
▶️ Answer/Explanation
Ans: D
Water absorption begins at the root hair cells (3), moves through the root cortex cells (2), enters the xylem vessels (4) for upward transport, and finally reaches the mesophyll cells (1) in leaves for photosynthesis. Thus, the correct sequence is 3 → 2 → 4 → 1 (Option D).
The arrows show the movement of substances from the soil into a root hair cell.
Which substances move from the soil into the root hair cell?
▶️ Answer/Explanation
Ans: D water and mineral ions
Root hair cells absorb water (via osmosis) and mineral ions (via active transport) from the soil. Glucose is not absorbed from the soil—it is synthesized by the plant during photosynthesis. Carbon dioxide and oxygen are exchanged in leaves, not roots. Thus, the correct answer is D.